2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov spindle fibers tsim thaum lub sij hawm prophase. Thaum lub sij hawm metaphase ntawm cell division, spindle fibers radiate los ntawm cov centrioles ntawm cov opposite ncej.
spindle fibers txuas rau qhov twg thaum lub sijhawm metaphase?
Thaum lub sijhawm metaphase, spindle fibers txuas rau lub centromere ntawm txhua khub niam txiv chromatids (saib daim duab hauv qab). Cov viv ncaus chromatids kab nyob rau ntawm txoj kab nruab nrab, lossis qhov nruab nrab, ntawm lub cell. Qhov no tseem hu ua phaj metaphase.
Do spindle fibers tsim hauv metaphase?
Spindle fibers tsim cov qauv protein uas faib cov khoom siv caj ces hauv ib lub xovtooj. … Thaum lub sij hawm faib cell hu ua metaphase, cov microtubules rub cov chromosomes rov qab mus txog rau thaum lawv nyob rau hauv ib lub dav hlau raws txoj kab nruab nrab ntawm tes, uas yog hu ua lub dav hlau equatorial.
Dab tsi yog spindle fibers hauv metaphase?
Metaphase: Spindle fibers hu ua polar fibers txuas ntawm cov ncej ntawm tes mus rau nruab nrab ntawm lub xovtooj hu ua metaphase phaj. Chromosomes yog tuav rau lub phaj metaphase los ntawm lub zog ntawm spindle fibers thawb rau ntawm lawv centromeres. Anaphase: Spindle fibers luv thiab rub tus muam chromatids mus rau spindle ncej.
Yuav ua li cas rau qhov ntxaiv thaum lub sijhawm metaphase?
Thaum lub sijhawm metaphase, tus muam chromatids ua raws txoj kab nruab nrab ntawm lub xovtooj los ntawm kev txuas lawv cov centromeres rau spindle fibers. Thaum anaphase, tus muamchromatids yog sib cais ntawm lub centromere thiab rub mus rau opposite ncej ntawm lub cell los ntawm lub mitotic spindle.
Pom zoo:
Lub sijhawm calvin lub voj voog twg ntawm cov hauv qab no tshwm sim?
Qhov twg hauv qab no tshwm sim thaum Calvin lub voj voog ntawm photosynthesis? Cov pa roj carbon dioxide hloov mus rau cov tshuaj uas tuaj yeem siv los ua suab thaj. Koj nyuam qhuav kawm 50 nqe lus! Dab tsi tshwm sim thaum lub caij Calvin?
Thaum lub sijhawm ua pa ntawm tes uas ntawm cov hauv qab no tso tawm los ntawm cov khoom lag luam?
Thaum lub sijhawm ua pa aerobic cellular, qabzib reacts nrog oxygen, tsim ATP uas tuaj yeem siv los ntawm tes. carbon dioxide thiab dej yog tsim los ntawm cov khoom lag luam. Hauv kev ua pa ntawm tes, qabzib thiab oxygen hnov qab tsim ATP.
Dab tsi ntawm cov hauv qab no yog qhov tshwm sim ntawm kev sib ntaus sib tua ntawm lub pas dej brandywine?
Cov txiaj ntsig ntawm Kev Sib Tw ntawm Brandywine Creek yog dab tsi? Washington tsuas yog sim ncua kev ntes Philadelphia kom nws ua tiav li no. Cov tub rog Asmeskas tsis tau poob siab ntau thiab lawv tau khiav tawm ntawm British. Washington tseem tuaj yeem kawm los ntawm nws qhov yuam kev ntawm kev tso nws txoj cai sab xis qhib.
Lub sijhawm sib txawv ntawm kev cuam tshuam tuaj yeem tshwm sim ntawm?
Kev cuam tshuam tshwm sim tshwm sim thaum theem sib txawv ntawm cov nthwv dej yog ntau yam ntawm 2π, qhov kev cuam tshuam cuam tshuam tshwm sim thaum qhov sib txawv yog π, 3π, 5π, thiab lwm yam. kev cuam tshuam tsim nyog tshwm sim nyob qhov twg?
Qhov kev tshwm sim twg txhawb nqa ntawm kev ncaj ncees ntawm lub sijhawm?
Kev siv nyiaj sib npaug txhawb nqa kev ncaj ncees rau lub sijhawm vim nws yog kev sim ua kom cov pej xeem tiam tam sim no tsis hloov lub nra ntawm kev them nyiaj rau cov kev pabcuam xyoo tam sim no rau Cov neeg them se yav tom ntej (GASB GASB Lub Tsev Haujlwm Saib Xyuas Kev Lag Luam Tus Qauv Txheej Txheem (GASB Cov Lus Qhia luv luv) yog muab los ntawm GASB rau set feem ntau lees paub cov cai tswjfwm (GAAP) rau lub xeev thiab tsoomfwv hauv nroog hauv Teb Chaws Asmeskas Cov nqe
